Logitech Z906 Amp Schematic

SkiTTle · May 19, 2021

Hello!

So my Z906s front speakers including center started cutting out when heavy bass hit. (Front-Left, Front-Right, Center)
I opened it up to take a look and I haven't saw anything wrong. So when finished I plugged it in and when I turned it ON a loud BANG happened..
I opened it up again, and I saw that there is a logic gate which had black legs.
So I put it back together and tried the channels, now they are not cutting out, but the Front Left speaker is really quiet.
I was wondering if someone had an amp schematic of this product. I wasn't able to find the product number of that logic gate, because it has thermal pads on it,

and I don't have any thermal pads at home RN.
Thank you!

Freakwise · May 19, 2021

10 minutes ago, SkiTTle said:

Hello!

So my Z906s front speakers including center started cutting out when heavy bass hit. (Front-Left, Front-Right, Center)
I opened it up to take a look and I haven't saw anything wrong. So when finished I plugged it in and when I turned it ON a loud BANG happened..
I opened it up again, and I saw that there is a logic gate which had black legs.
So I put it back together and tried the channels, now they are not cutting out, but the Front Left speaker is really quiet.
I was wondering if someone had an amp schematic of this product. I wasn't able to find the product number of that logic gate, because it has thermal pads on it,

and I don't have any thermal pads at home RN.
Thank you!

You can't get an amp schematic for commercial products like that, what you can do is search the ic number or the closest ic to that one, then you have some idea for what your exploded ic is..

Also for the cutting out problem is probably clipping but, how much volume in % does you use your speakers?

most of the time some audio product get clip at around 90%